*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html, body {
    height: 100%;
    width: 100%;
    background-color: #f5f6fa;

}

.ml-15 {
    margin-left: 15px;
}

.mr-15 {
    margin-right: 15px;
}


